html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: #666;
}
li,
a,
h1,
h2 {
  padding: 0;
  margin: 0;
  list-style: none;
}
input {
  box-sizing: border-box;
  outline: none;
  border: none;
  background-color: transparent;
}
